The area that appeared to be hit the hardest was the Rancho Brazos subdivision, southeast of Granbury Wednesday night, where dozens of mobile and single-family homes were destroyed, according to Hood County Sheriff Roger Deeds.

At least 10 tornadoes were reported Wednesday in Montague, Parker, and Wise counties, meteorologists said, though some only hit the ground for a few moments.

A half dozen were killed in the wreckage, and of those injured, some were critical. Injuries range from lost limbs to minor bumps and bruises, Deeds told the USA Today.

Fourteen people are unaccounted for in the North Texas region, but it was not immediately clear if they were missing or were away from the area at the time the tornadoes struck. Areas outside the Rancho Brazos subdivision had not been searched thoroughly because it got dark, according to the Dallas Morning News.

Houses were flattened with people inside, Deeds said, and much of the county was left without power.

"There were probably 75 homes in that subdivision that are totally destroyed,'' Deeds told the Dallas Morning News. ""It's definitely a nightmare. We knew it was going to be a tough night in Hood County."

Officers "are going house to house" looking for trapped residents near Lake Granbury, according to Hood County Sheriff's Lt. Kathy Jiveden.

Jocelyn Trejo, 18, was with her dad and brother outside watching the storm when the tornado hit in the Rancho Brazos subdivision. They quickly ran inside for shelter.

"It was terrifying," she told the Dallas Morning News. "The most horrible thing I've ever been through."

"I grabbed my baby and ran to the bathroom," she said, touching her 9-month old daughter's cheek. "I'm glad we went to the one in the middle if the house. The bathroom in my room is gone. We just heard glass shattering everywhere."

The tornados on Wednesday night were part of a broader storm system that dumped rain and hail up to the size of grapefruit on parts of the state. In Erath County, storms began around 6:30 p.m., with weather intensifying over the next hour. A tornado warning and phone emergency notification system went out and the tornadoes hit about 10 minutes later, Deeds said.

The National Weather Service issued storm warnings in 32 counties in Texas and four others in Oklahoma. The tornado watch was in effect until 1 a.m. Thursday.

The storm marked the beginning of tornado season, National Weather Service Meteorologist Dan Shoemaker told the Dallas Morning News.